289+126x3+126x7
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\left(57-289\right)-\left(76-289\right)+\left(176+43\right)\)
\(=\) \(\left(-232\right)\) \(-\) \(\left(-213\right)\) \(+\) \(219\)
\(=\) \(\left(-19\right)+219\)
\(=200\)
(57 - 289 ) - ( 76 - 289 ) + ( 176 + 43 )
= 57 - 289 - 76 +289 +176 +43
= (57 + 43 ) + ( -289 +289 ) + ( - 76 + 176 )
= 100 +100
=200
![](https://rs.olm.vn/images/avt/0.png?1311)
-(-3793+289)+(-3793+289)+(-37)
=3793-289-3793+289-37
= (3793-3793) +(289-289)-37
=-37
![](https://rs.olm.vn/images/avt/0.png?1311)
Sao ban chui ban ay?
3-(17-x)=289-(36+289)
3-(17-x)=-36
17-x=-36+3
17-x=39
x=17-39
x=-22
Nho cho mk nhe!!!!!!
3-(17-x)=289-(36+289)
3-(17-x)=-36
17-x=39
x=17-39
x=-22
Vay x=-22
Nho cho mk 1 h nha!!!
![](https://rs.olm.vn/images/avt/0.png?1311)
`#3107.101107`
3 x 10 = 30
727 - 289 = 438
289 - 288 = 1
8 x 9 = 72
900 - 900 = 0
190 - 100 = 90
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
289 x 57 + 311 x 45 + 289 x 43 + 311 x 55
= 289 x ( 57 + 43 ) + 311 x ( 45 + 55 )
= 289 x 100 + 311 x 100
= ( 289 + 311 ) x 100
= 600 x 100
= 60000
\(289x57+311x45+289x43+311x55\)\(=289x\left(57+43\right)+311x\left(45+55\right)\)
\(=289x100+311x100=100x\left(289+311\right)\)\(=100x600=60000\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(=\dfrac{3.4-\dfrac{3.4}{4}-\dfrac{3.4}{289}-\dfrac{3.4}{85}}{4-\dfrac{4}{7}-\dfrac{4}{289}-\dfrac{4}{85}}=\dfrac{3.\left(4-\dfrac{4}{7}-\dfrac{4}{289}-\dfrac{4}{85}\right)}{1.\left(4-\dfrac{4}{7}-\dfrac{4}{289}-\dfrac{4}{85}\right)}=\dfrac{3}{1}=3\)
289 + 126 x 3 + 126 x 7
= 289 + 126 x ( 3 + 7 )
= 289 + 126 x 10
= 289 + 1260
= 1549
Trả lời:
1549
HT